We all think of streamlining when swimming under water, and we know it makes a big difference to train for a good streamline. Now we have been wondering how much of a difference it actually makes - can we put numbers to this?
Enter Simon Elvmarker on his AIDA instructor course with us. Simon happens to have a background which allowed him to run the numbers on this and deliver a qualitative analysis of fluid dynamics in freediving.
As a bonus, he also looked at the fluid dynamics of shark skin and the (in-)famous swimming suits that carry that name.
We were surprised by the results. - Read his paper attached below.